diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 0074b8dba793..acb1c36adadd 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -816,13 +816,23 @@ config CACHE_FEROCEON_L2_WRITETHROUGH Say Y here to use the Feroceon L2 cache in writethrough mode. Unless you specifically require this, say N for writeback mode. +config MIGHT_HAVE_CACHE_L2X0 + bool + help + This option should be selected by machines which have a L2x0 + or PL310 cache controller, but where its use is optional. + + The only effect of this option is to make CACHE_L2X0 and + related options available to the user for configuration. + + Boards or SoCs which always require the cache controller + support to be present should select CACHE_L2X0 directly + instead of this option, thus preventing the user from + inadvertently configuring a broken kernel. + config CACHE_L2X0 - bool "Enable the L2x0 outer cache controller" - depends on REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176 || \ - REALVIEW_EB_A9MP || SOC_IMX35 || SOC_IMX31 || MACH_REALVIEW_PBX || \ - ARCH_NOMADIK || ARCH_OMAP4 || ARCH_EXYNOS4 || ARCH_TEGRA || \ - ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || ARCH_SHMOBILE - default y + bool "Enable the L2x0 outer cache controller" if MIGHT_HAVE_CACHE_L2X0 + default MIGHT_HAVE_CACHE_L2X0 select OUTER_CACHE select OUTER_CACHE_SYNC help